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R421B GWP: global warming potential (AR4, AR5)

R421B has a 100-year global warming potential (GWP) of 3,190 under AR4, 2,890 under AR5, and 3,468 under WMO 2022.

A GWP is counted in kilograms of CO₂ equivalent (kg CO₂e) per kilogram of gas released.

GWP by IPCC report and horizon

One row per figure. When publishers print different figures under one report, each figure gets its own row.

R421B: global warming potential by report and horizon, in kg CO₂e per kg
ReportHorizonGWPPrinted by
AR4100 years3,190UNEP
AR5100 years2,890DESNZ
WMO 202220 years6,381UNEP
WMO 2022100 years3,468UNEP

Composition

R421B is a blend. Shares by mass as UNEP states them.

ComponentShare by mass
R12585%
R134a15%

Who publishes it

Every open record of R421B this page reads, with the figures it prints.

PublisherRecordRegionFiguresFactor page
DESNZBlends - R421BUnited KingdomAR5 100 years: 2,890
UNEPR-421B - R-125/134a (85.0/15.0)WorldAR4 100 years: 3,190 · WMO 2022 20 years: 6,381 · WMO 2022 100 years: 3,468

Source: the open records of the open-climate.ai catalogue, version 1590.

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